Parcel Chartplaces Open the free map

County · code 35017

Grant CountyNew Mexico

Grant County is a county in New Mexico with its seat in Silver City, created in 1868.

  • Founded1868
  • County seatSilver City
  • Named forUlysses S. Grant
  • Land area3,961 sq mi + 5.9 sq mi water
  • Population28,185 2020 Census
  • Parcels mapped44,621 checked 16 October 2026
Open the free map Click any parcel in Grant County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

LunaHidalgoGreenlee, AZCatronSierra Silver City Census outline · seat marked

Where it is

Grant on the map of New Mexico

New Mexico has 33 counties and county equivalents, each with its own records office. Shapes with a page are links.

Bernalillo CountyCatron CountyChaves CountyCibola CountyColfax CountyCurry CountyDe Baca CountyDoña Ana CountyEddy CountyGuadalupe CountyHarding CountyHidalgo CountyLea CountyLincoln CountyLos Alamos CountyLuna CountyMcKinley CountyMora CountyOtero CountyQuay CountyRio Arriba CountyRoosevelt CountySandoval CountySan Juan CountySan Miguel CountySanta Fe CountySierra CountySocorro CountyTaos CountyTorrance CountyUnion CountyValencia CountyGrant County Grant
Counties of New Mexico · Grant highlighted

History

Formed in 1868 from Do County, Ana County and Socorro County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Grant County was created in 1868 from Doña Ana and Socorro counties and was named after Ulysses S. Grant. The county lost territory to the creation of Sierra County in 1884, Luna County in 1901, and Hidalgo County in 1920.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1868
    Grant County created Grant created by New Mexico Territory from DoÑA Ana and Socorro.
    from Dofrom Anafrom Socorro
    · N.M. Terr. Laws 1867-1868, 17th assy., ch. 20/p. 88
  2. 1880
    Lost territory Grant lost to DoÑA Ana.
    to Doto Ana.
    · N.M. Terr. Laws 1880, 24th assy., ch. 43/p. 99
  3. 1884
    Lost territory Grant lost to creation of Sierra
    to Sierra
    · N.M. Terr. Laws 1884, 26th assy., ch. 109/pp. 223-225
  4. 1901
    Lost territory Grant lost to creation of Luna.
    to Luna
    · N.M. Terr. Laws 1901, 34th assy., ch. 38/pp. 70-75
  5. 1917
    Boundary clarified Grant boundaries with Socorro and Sierra were redefined to run on the line between Township 12S and Township 13S (no change).
    with Socorrowith Sierrano change
    · N.M. Laws 1917, 3rd reg. sess., ch. 57/pp. 178-179
  6. 1920
    Lost territory Grant lost to creation of Hidalgo.
    to Hidalgo
    · N.M. Laws 1919, 4th reg. sess., ch. 11/pp. 11-12
  7. 1927
    Changed Legislature authorized Grant to gain from Catron. This act attempted to circumvent the constitutional prohibition against changing county boundaries by special or local law and the attorney general filed action to prevent implementation of the statute. Proposal failed on 3 April 1928 when the New Mexico Supreme Court ruled the act unconstitutional (no change).
    Catron
    · N.M. Laws 1927, 8th reg. sess., chs. 185-186/pp. 457-464; N.M. Constitution 1910, art. IV, sec. 2, in Swindler, 7:102-103; "State ex rel. Dow v. Graham," in N.M. Reports, 33:504-519; N.M. Stat. 1978, ch. 4, pamphlet 11, 4-28-1 "Socorro County Laws" 1927, ch. 185; Coan reprint, 20

Land and parcels

What the maps cover in Grant

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Grant by the Census

Population
28,185 2020 Census count
Housing units
14,584 2020 Census count
Land area
3,961 square miles
Water area
5.9 square miles
People per sq mi
7 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Grant County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Grant County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Grant County

When was Grant County founded?
Grant County was founded in 1868, formed from Do County, Ana County and Socorro County, and named after Ulysses S. Grant.
What is the county seat of Grant County?
The county seat of Grant County is Silver City.
Is there an online parcel map for Grant County?
Yes. Grant County, NM Assessor (owner jpaul@grantcountynm.gov, county domain; grantcountynm.gov/200/Assessor links 'Parcel Data Map', Experience 8914003b85c3430dabfbacc85656dc3e, which loads this layer; org profile not public) publishes a parcel map of 44,621 parcels, rated official here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Grant County's boundary or name changed?
Grant County was created in 1868 from Do County, Ana County and Socorro County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Ana. County, Do County and Hidalgo County.
Is my lot in a flood zone?
We do not have flood maps for Grant County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door